Thanks Greg Have you noticed any other changes since you posted on the 27th?
It would also be nice to see how this correlates with home broadband usage too. I think this might make an interesting talk at UKNOF. Regards Denesh > On 27 May 2020, at 08:15, Greg Choules <[email protected]> wrote: > > Good morning all. > Now that Ramadan has ended and we have a few days' worth of stats to look at > it does indeed appear that the dip was related. There was one on 23rd > (Saturday) but none since. Throughout this period it was shifting to the > right each day, broadly tracking sunset in the UK. > > Thank you for the discussion this prompted. > > cheers, Greg > From: Gord Slater <[email protected]> > Sent: 23 May 2020 16:13 > To: Paul Mansfield <[email protected]> > Cc: [email protected] <[email protected]>; Greg Choules > <[email protected]> > Subject: Re: [uknof] 9pm data dip > > Though beware that "it's complicated" :) If you compare data against majority > muslim countries, you'll see some Ramadan effects dragging on a little for > the next month or so. I doubt this will be noticeable in UK data though, > except in certain local geo areas. > > > Eid is broadly equivalent to Christmas in scale, so the festivities and > family celebrations tend to last at least couple or three days. similar to > the western Christian tradition of eating turkey sarnies until leftovers are > used up. The first day is usually the most significant. > After Eid settles down, there are broadly 3 groups of behaviour:- > > > Extra optional religious fasting - this is approximately a week or more of > additional fasting for religious purposes, or replacement fasting for people > who could not fast in Ramadan for travel or temporary health reasons. > > Extra lifestyle fasting - some people (possibly as many as 5 to 10% in some > societies) fast on and off over the following month or two because they enjoy > it but have no significant religious intent. Some do it to provide moral > support for friends or amily who fast for more othodox reasons. > > "back to normal" - where people carry on their normal lives - this is the > majority of the working populace in majority-muslim countries, especially > doing manual labour > > > Also significant when comparing international data is that majority-muslim > countries keep very different business hours during Ramadan, which will show > up in data plots. The data I've seen in the past was more akin to > Spanish-style summer siesta pattens (most govenrment offices and large > public-facing businesses are only open in the mornings during Ramadan, some > are closed all day Fridays) > > Also the normal business "weekend" varies a lot across the muslim world - > some places are closed Thursdays and Fridays, (in West Africa this can vary > from state to state within countries) others close Saturday an Sunday with an > afternoon break on Friday, others close Friday and Saturday, > Companies and governement departments dealing with non-muslim countries may > keep two sets of hours, the "international business" hours and their normal > customer-facing hours > > The cultural concept of time can be very different from the western > perception of opening times. Priorities and approaches to opening times and > appointments are heavily influenced by cultural situation, especially in very > hot countries. > > Personally, I'm betting on the "hey kids get to bed it's getting dark" > theory, combined with Covid-19 lockdown effects. Mainly because - as I'm try > to explain in the shortest possible manner (but failing badly) - comparisons > between UK and majority-muslim countries will be extremely difficult. > As a rough guess I'd say that Pakistan and Bangladesh would be the closest > fit to cultural practices durind Ramadan, but international family > communications UK<>Asia/ISC across the timezones would skew the data > significantly. I also have less data/comms insight there than in MENA, so I'm > not really sure. > > There may however be some close correlation between French ISPs, Dutch and > Belgian ISPs and their Maghrebi ISP counterparts, being largely in the same > timezone, though the UK only has a very small Magrebi diaspora compared to > any of those other 3 countries. Marseilles would be a good geo-area to > compare to Tunisia, Algerian and to a lesser extent, Moroccan data plots for > example, given similar sunrise/sunset times. > > > > > On Sat, 23 May 2020 at 10:54, Paul Mansfield <[email protected]> > wrote: > Hopefully Greg can tell us if the bandwidth dips go away now it's the > last day of Ramadan, as that seems to be the popular explanation. > The first day of Ramadan was 23rd April so the dips should have started then. > > > > -- > sent via Gmail web interface, so please excuse my gross neglect of Netiquette > > This e-mail message (including any attachment) is intended only for the > personal use of the recipient(s) named above. This message is confidential > and may be legally privileged. If you are not an intended recipient, you may > not review, copy or distribute this message. 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